Best Telephony & PBX tools by public signals

These picks are computed from scored public evidence. Use the openness column in the ranking to separate OSI-approved, source-available, open-core, proprietary, and unverified-license tools.

Use Case Rankings

Ordered by ToolVitals score, health, shipping, confidence, and then adoption as a tie-breaker.

# Tool Health Shipping Openness Stars Score Status
01 MikoPBX
Open-source PBX for small business built on Asterisk.
79 87 OSI-approved OSS 546 86 Active
02 FastAICC
Open-source AI call center solution with FreeSWITCH and LLM support.
38 7 License unknown 1 39 Critical
03 GoNopbx
Web GUI for Asterisk PBX with extensions, SIP trunks, voicemail, and real-time dashboard.
21 10 License unknown 65 33 Critical